ENS 48126: Difference between revisions

From kanterella

Latest revision as of 21:03, 1 March 2018

v t e ENS Event
09:08 Jul 23, 2012
Title	Tsc Ventilation System Out of Service
Event Description	On July 23, 2012, at 0508 EDT, the Technical Support Center (TSC) ventilation was tagged out for routine maintenance. It was believed that only the cooling function was affected and that the TSC ventilation system was still capable of performing its intended function of pressurization and filtration. A review by operations today determined that the TSC filtration and pressurization portion was also affected. Under certain accident conditions, the TSC may become unavailable due to the inability of the filtration system to maintain a habitable atmosphere. Compensatory measures exists to relocate the TSC to an alternate location. Currently it is expected that the TSC ventilation system maintenance will be completed by the end of the day shift today and turned over to operations. Operations should start up the system early during night shift (7/24). This is reportable to the NRC per 10 CFR 50.72 (b)(3)(xiii) as an eight hour non-emergency notification. The event had no effect on plant operations and no impact on public health and safety has been identified. The licensee will notify the NRC Resident Inspector, States and Counties.

ENS 48126 +/-
Where
Catawba South Carolina (NRC Region 2)
Reporting

10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness
Time - Person (Reporting Time:+25.93 h1.08 days <br />0.154 weeks <br />0.0355 months <br />)
Opened:	Wayne Jarman 11:04 Jul 24, 2012
NRC Officer:	Dong Park
Last Updated:	Jul 24, 2012
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v • d • e

v t e Emergency Notification System
Catawba with 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness
WEEKMONTHYEAR	Long Term Habitability of the Technical Support Center Under Accident Dose Analysis Exceeds the Calculated Allowable Values	Loss of Emergency Assessment Capability 2021-07-04T13:11:00 [Table view]
[ENS list for Catawba]

@@ Line 16: / Line 16: @@
 | event date = 07/23/2012 05:08 EDT
 | last update date = 07/24/2012
-| title = Tsc Ventilation System Out Of Service
+| title = Tsc Ventilation System Out of Service
 | event text = On July 23, 2012, at 0508 EDT, the Technical Support Center (TSC) ventilation was tagged out for routine maintenance.  It was believed that only the cooling function was affected and that the TSC ventilation system was still capable of performing its intended function of pressurization and filtration.  A review by operations today determined that the TSC filtration and pressurization portion was also affected.  Under certain accident conditions, the TSC may become unavailable due to the inability of the filtration system to maintain a habitable atmosphere.  Compensatory measures exists to relocate the TSC to an alternate location.  Currently it is expected that the TSC ventilation system maintenance will be completed by the end of the day shift today and turned over to operations.  Operations should start up the system early during night shift (7/24).
 This is reportable to the NRC per 10 CFR 50.72 (b)(3)(xiii) as an eight hour non-emergency notification.  The event had no effect on plant operations and no impact on public health and safety has been identified.  The licensee will notify the NRC Resident Inspector, States and Counties.